Improvement in hillside-plows



M. MERK.

Side-Hill PlOW.

No. 20,812. Patented July 6. 1858.

N-IFETERS, PHOTO-LITHOGRAPNER. WASHINGTON. n c.

-plow. Fl g. 2

UNITED, STATES PATENT OFFICE.

M. MERK, OF ROCHESTER, N EVV YORK.

IMPROVEMENT IN HILLSIDE-FLOWS.

Specification forming part of Letters Patent No. 20,8 I 2, dated July 6,1858.

To all whom it may concern.-

Be it known that I, MODEST MERK, of Rochester, in the county of Monroeand State of New York, have invented a new and useful Improvement inHillside-Flows; and I do hereby declare that the followingis afull,clear, and exact description of the construction and operation of thesame, reference being bad to the accompanying drawings, making part ofthis specification, and to the letters of reference marked thereon.

The sameletters refer to corresponding parts in all of the figures.

My improvement consists in the peculiar manner of constructin g andarranging the share and mold-boards.

Figure 1 represents a side elevation of my is a horizontal section onthe line 00 m of Fig. 1.

Ais the draft-beam; B, the handles; 0, the colter-share and mold board,and D the subsidiary mold-board. E isa furrow-bar occupying the positionof the ordinary landside, and F F the frame, constructed ofiron andsecurely bolted to the bar E and connecting it with the wood-work. Thefront end of the furrow-bar is inserted in a round socket in the share0. (Shown at a, Fig. 3, which is a perspective view of the sharedetached.) From the two wings I) c a bar wrought to the proper shapeforms a segmental slot, (1. A pin, 0, through this slot is inserted inthe furrow-bar, and allows the share to rotate a quarter of a circle, asindicated in the transverse section, Fig. 4.

The share is constructed to answer the triple purpose of colter, point,and mold board. It consists of two wings starting at right angles fromone center and diminishing with a rapid curve from the head to thepoint. The distance from their center to the greatest point ofprojection is equal to the width of furrow to be cut, and also-equal toif not. greater than its depth. Therefore, the edges being sharp, thevertical one serves .as a colter by cutting the soil-and turf graduallyas it moves, while the horizontal one cleaves the earth at the bottom ofthe furrow and leaves it free to be turned over. The wings of the shareare curved, to present each a convex side to the furrow and a concaveone to the land and bed of the furrow, which gives the earth aconsiderable of the curve necessary to turn the furrow, afterv passingwhich the inclined plane or subsidiary mold -board D receives the raisedearth, and by the oblique face which it presents completes the operationof turning the furrow. The share is constructed of wrought-iron withsteel edges welded to the wings toinsure sharpness and durability.

The subsidiary mold-board consists of aflat plate of metal having ahook, g, at one end, and an arm, J, attached by a screw-bolt near theother. This arm passes through a mortise in the rear portion of theframe G, where it is held by a pin, h. The hook is inserted in the hole6 in the upright wing of the share, and as the arm is fastened at G theback of the plate is pressed hard against the forward framepiece, F,which serves as a fulcrum by which it holds the share (3 securely in itsposition.

To reverse the mold-board at the end of the furrow it is only necessaryto take out the pin it, turn the share U, and reinsert the hook and armon the other side of the furrow-bar, as indicated by dotted lines inFig. 2. The concave sides presented by the shareO render the draft easyby presenting constant contact with the bottom of the furrow andlandside and enables it to pass stones more readily.

' The construction is every way simple and strong and calculated to doefficient work with light draft.

What I claim as my improvement in hillsideplows, and desire to secure byLetters Patent, 1s-

The reversible convex-winged coltershare 0, constructed as described, incombination with the plane subsidiary mold-board D, connecting-arm J,and furrow -bar E, arranged and operating substantially as and for thepurpose set forth.

MODEST MERK.

Witnesses J. FRASER, S. J. ALLrs.

